JPH02101204U

JPH02101204U -

Info

Publication number: JPH02101204U
Application number: JP1059989U
Authority: JP
Priority date: 1989-01-30
Filing date: 1989-01-30
Publication date: 1990-08-13

Description

[Brief explanation of drawings]

第１図イは本考案の測定用治具を示す平面図、
第１図ロは第１図イの右側面図、第１図ハは第１
図イの裏面図、第１図ニは第１図イの上側面図、
第２図は本考案の測定用治具を使用して長方形物
の対角線の長さを測定している状態を示す図、第
３図は本考案の測定用治具を使用する場合に生じ
る測定誤差を説明するための図、第４図は三角形
の余弦法則の適用を説明するための図である。１……平板、３……円柱、５……第１のコーナ
接触部、７……第２のコーナ接触部、９……支持
リング、２１……長方形物、２３……測長器、２
５，２７……測定用治具、９１……測定穴。 Figure 1A is a plan view showing the measuring jig of the present invention;
Figure 1 B is the right side view of Figure 1 A, and Figure 1 C is the right side view of Figure 1 A.
Figure A is a back view, Figure 1D is a top side view of Figure 1A,
Figure 2 shows the length of the diagonal of a rectangular object being measured using the measuring jig of the present invention, and Figure 3 shows the measurements that occur when using the measuring jig of the present invention. FIG. 4 is a diagram for explaining the error and is a diagram for explaining the application of the law of cosines to triangles. DESCRIPTION OF SYMBOLS 1... Flat plate, 3... Cylinder, 5... First corner contact part, 7... Second corner contact part, 9... Support ring, 21... Rectangular object, 23... Length measuring device, 2
5, 27...Measurement jig, 91...Measurement hole.

Claims

[Scope of utility model registration request]

A measuring jig that is placed on a corner of a flat surface of a rectangular object to be measured when measuring the diagonal length of a rectangular object that has been processed into a rectangular shape surrounding a flat surface, and includes a flat plate and the same flat plate. a rectangular object located on the back side of the flat plate, the central axis of the cylinder being on a line connecting two contacting parts that are fixed to the flat plate; A straight line connecting a first corner contact portion that contacts one side of the corner at two places, a portion located on the back side of the flat plate surface that is fixed to and contacts the flat plate, and the central axis of the cylinder is the second corner contact portion. a second corner contact part that contacts at one place the other side of the rectangular object that is located perpendicular to the straight line connecting the parts that are in contact with each other; A measuring jig comprising: a support ring which is fitted in a manner such that the measuring tool can be brought into contact with the side surface of the cylinder.